Introduction to Using Apply/Map in Pandas
Explore how to effectively use Pandas apply, map, and applymap functions to perform complex operations on data. Understand applying custom functions with lambda expressions to categorize and analyze datasets like travel and medical records. This lesson helps you prepare for interview questions involving function applications across columns and rows in Pandas.
We'll cover the following...
We'll cover the following...
Concept
So far you’ve been mainly using filters and basic manipulation through groups or dates. You’ve also covered basic aggregation concepts, such as getting the count of records, or the mean of a certain column.
Sometimes, you may need to apply more complex functions to each record, cell, or column.
Syntax
Assuming you have a certain function my_magic_fn to be applied to every value of a ...